Results 41 to 50 of about 4,097,365 (246)

Data incongruence and the problem of avian louse phylogeny [PDF]

open access: yes, 2004
Recent studies based on different types of data (i.e. morphological and molecular) have supported conflicting phylogenies for the genera of avian feather lice (Ischnocera: Phthiraptera).
Archie J. W.   +52 more
core   +1 more source

Testis and brown adipose tissue xenografts from yellowish myotis (Myotis levis)

open access: yesReproduction and Fertility, 2022
Yellowish myotis present a seasonal reproduction, influenced by rainfall distribution, in which the testis mass, germ cell composition, and brown adipose tissue (B.A.T.) mass change along the reproductive stages.
Talita De Oliveira Farias   +4 more
doaj   +1 more source

Of hummingbirds and helicopters: Hovering costs, competitive ability, and foraging strategies [PDF]

open access: yes, 2004
Wing morphology and flight kinematics profoundly influence foraging costs and the overall behavioral ecology of hummingbirds. By analogy with helicopters, previous energetic studies have applied the momentum theory of aircraft propellers to estimate ...
Altshuler, Douglas L.   +2 more
core   +1 more source

SynBio in 3D: The first synthetic genetic circuit as a 3D printed STEM educational resource

open access: yesFrontiers in Education, 2023
Synthetic biology is a new area of science that operates at the intersection of engineering and biology and aims to design and synthesize living organisms and systems to perform new or improved functions.
Heloísa Oss Boll   +8 more
doaj   +1 more source

Understanding Genomic Evolution of Olfactory Receptors through Fractal and Mathematical Morphology [PDF]

open access: yes, 2011
Fractals and Mathematical Morphology are immensely used to study many problems in different branches of science and technology including the domain of Biology. There are many more unrevealed facts and figures of genes and genome in Computational Biology.
Arunava Goswami   +5 more
core   +1 more source

Vegetative incompatibility and potential involvement of a mycovirus in the Italian population of Geosmithia morbida [PDF]

open access: yes, 2015
Studies carried out during an Italian outbreak of the Thousand Cankers Disease of walnut, demonstrated that non-coalescing cankers on host plants, separated by equidistant uninfected zones, were associated with incompatible strains of Geosmithia morbida.
Berton, Valeria   +3 more
core   +2 more sources

Inhibitory effect of O-propargyllawsone in A549 lung adenocarcinoma cells

open access: yesBMC Complementary Medicine and Therapies, 2023
Background Lung cancer is the deadliest type of cancer in the world and the search for compounds that can treat this disease is highly important. Lawsone (2-hydroxy-1,4-naphtoquinone) is a naphthoquinone found in plants from the Lawsone genus that show a
Edmilson Willian Propheta dos Santos   +9 more
doaj   +1 more source

Tuta absoluta (Povolny, 1994), an important agricultural pest in Malta (Lepidoptera: Gelechiidae) [PDF]

open access: yes, 2009
Tuta absoluta appeared for the first time in the Maltese Islands in April 2009. Details of the morphology and biology of this agricultural pest are provided.
Catania, Aldo, Dandria, David
core  

Range-based techniques for discovering optimality and analyzing scaling relationships in neuromechanical systems [PDF]

open access: yes, 2009
In this paper, a method for decoupling the neuromuscular function of a set of limbs from the role morphology plays in regulating the performance of an activity is introduced.
Bradly J. Alicea
core   +2 more sources

Anti-proliferative and pro-apoptotic activity of glycosidic derivatives of lawsone in melanoma cancer cell

open access: yesBMC Cancer, 2021
Background Melanoma is a malignant cancer that affects melanocytes and is considered the most aggressive skin-type cancer. The prevalence for melanoma cancer for the last five year is about one million cases.
Mariana Nobre Farias de Franca   +9 more
doaj   +1 more source

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